What kind of disease does drooling from a crooked mouth belong to and which department do I go to?

Drooling at the corners of the mouth is most often a central nervous system disorder and requires a visit to the neurology department of the hospital.
The doctor will make an initial determination based on the patient’s clinical symptoms and specific physical signs.
The severity of the patient’s condition can be further determined by performing relevant tests such as cranial CT and MRI to determine whether there are intracranial lesions.